Mass shooting kills six

Six were killed and at least 12 were injured in what became known as Sunday morning's shooting in Sacramento, California.

"We are investigating this horrific act," police chief Catherine Lester said Sunday afternoon.

We know that there was a big fight just before the firing

Confirmation shows that there were several shooters among them.

Three men and three women were killed in the incident.

All the injured were taken to a local hospital.

Lester also said that the coroner's office was working to identify and inform the families of the victims.

Lester says the investigation has uncovered hundreds of pieces of evidence from several locations. They include a stolen handgun.

When the shooting took place, officials rushed to the scene.

The police chief also said that after hearing the sound of gunfire and seeing people fleeing, the officers immediately retaliated at the scene near 10th Street.

When officers arrived at the scene, they discovered a large crowd and bullets.

"Officers began providing medical assistance to the victims, including CPR," Lester told a news conference on Sunday.

At the same time, they started to stabilize the scene and find out the culprit. "

He said police worked with members of the California Highway Patrol and the Sacramento Fire Department at the scene.

All our agencies tried to save lives. "

Police also said in a statement that the social media video showed a fight before the shooting.

"We are currently working on what these events have to do with the shooting," he said in a statement. "